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    Atomic Structure and The Periodic Table: Practice Problems

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    Mariam
    This document contains practice problems from 5 sections on atomic structure and the periodic table. There are 25 multiple choice and short answer questions testing understanding of topics like atomic mass, atomic number, isotopes, and classifying elements based on their location on the periodic table. The questions cover key concepts and require calculations related to atomic structure.

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    Atomic Structure and The Periodic Table: Practice Problems

    Uploaded by

    Mariam
    16 views2 pages
    This document contains practice problems from 5 sections on atomic structure and the periodic table. There are 25 multiple choice and short answer questions testing understanding of topics like atomic mass, atomic number, isotopes, and classifying elements based on their location on the periodic table. The questions cover key concepts and require calculations related to atomic structure.

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    This document contains practice problems from 5 sections on atomic structure and the periodic table. There are 25 multiple choice and short answer questions testing understanding of topics like atomic mass, atomic number, isotopes, and classifying elements based on their location on the periodic table. The questions cover key concepts and require calculations related to atomic structure.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    16 views2 pages

    Atomic Structure and The Periodic Table: Practice Problems

    Uploaded by

    Mariam
    This document contains practice problems from 5 sections on atomic structure and the periodic table. There are 25 multiple choice and short answer questions testing understanding of topics like atomic mass, atomic number, isotopes, and classifying elements based on their location on the periodic table. The questions cover key concepts and require calculations related to atomic structure.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 2

    Name ________________________________________ Class _________________ Date _______________

    ATOMIC STRUCTURE AND THE PERIODIC TABLE


    5 PRACTICE PROBLEMS
    In your notebook, solve the following problems.

    SECTION 5.1 ATOMS


    1. According to Figure 5.2, 100 000 000 copper atoms would form a line 1 cm
    long. How long would a line formed by 1 3 107 copper atoms be? Express
    your answer in millimeters.

    SECTION 5.2 STRUCTURE OF THE NUCLEAR ATOM


    1. A sulfur-32 atom contains 16 protons, 16 neutrons, and 16 electrons. What is
    the mass (in grams) of a sulfur-32 atom?
    2. The mass of a neutron is 1.67 3 10224 g. Approximately what number of
    neutrons would equal a mass of one gram?
    3. Which statement is consistent with the results of Rutherford’s gold foil
    experiment?
    a. All atoms have a positive charge.
    b. Atoms are mostly empty space.
    c. The nucleus of an atom contains protons and electrons.
    d. Mass is spread uniformly throughout an atom.

    SECTION 5.3 DISTINGUISHING BETWEEN ATOMS


    1. How many protons are found in an atom of each of the following?
    a. boron c. neon
    b. sulfur d. lithium
    2. Complete the table for the following elements:

    Element Number of Number of Number of Atomic Mass


    protons electrons neutrons number number
    Prentice Hall, Inc. All rights

    Manganese 25 30

    Sodium 11 12

    Bromine 35 45

    Yttrium 39 89

    Arsenic 33 75

    Actinium 227

    Review Module / Chapters 5–8 15


    Name ________________________________________ Class _________________ Date _______________

    3. How many neutrons are in each atom?


    23 81
    11Na 35Br
    238 19
    92 U 9F

    4. The two most abundant isotopes of carbon are carbon-12 (mass 5 12.00 amu)
    and carbon-13 (mass 5 13.00 amu). Their relative abundances are 98.9% and
    1.10%, respectively. Calculate the atomic mass of carbon.
    5. Element X has two isotopes: X-100 and X-104. If the atomic mass of X is 101
    amu, what is the relative abundance of each isotope in nature?

    SECTION 5.4 THE PERIODIC TABLE: ORGANIZING THE ELEMENTS


    1. Which element below should have chemical properties similar to fluorine (F)?
    a. Li
    b. Si
    c. Br
    d. Ne
    2. Identify each element as a metal, metalloid, or nonmetal.
    a. fluorine
    b. germanium
    c. zinc
    d. phosphorus
    e. lithium
    3. Which of the following is not a transition metal?
    a. magnesium
    b. titanium
    c. chromium
    d. mercury
    4. Name two elements that have properties similar to those of the element
    potassium. Prentice Hall, Inc. All rights reserved.

    5. Group A elements of the periodic table can be divided into three broad classes.
    What are these classes and how do they differ?

    16 Review Module / Chapters 5–8

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